UHN1A472MHD

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Aluminum electrolytic capacitors are widely used in electronic circuits due to their relatively high capacitance values, small size and relatively low cost. The UHN1A472MHD is an aluminum electrolytic capacitor that is particularly suitable for high-current applications. In this article, we will discuss the UHN1A472MHD\'s application field and working principle.

Introduction

The UHN1A472MHD is an aluminum electrolytic capacitor that is principally used in an extensive variety of high-current applications. Working on a radial leaded format, the device is able to hold up to an impressive 470uF of charge with a voltage rating of 100V. It has an impedance of 10MΩ at 100kHz, an ESR of 0.10Ω and a life expectancy of up to 1000 hours.

Application Field

Due to its impressive specifications and small package size, the UHN1A472MHD is suitable for a variety of high-current applications. Most notably, the device is well suited for use in line supplies, such as in LED drivers, AC to DC converters, PC power supplies and more. It can also be used in a variety of switch mode power supplies, including SMPS, end-stage converters, as well as its use in other current-intensive applications. The device offers both a high capacitance with low impedance which is crucial in these circuit designs. In addition, the device also has a long-life span of up to 1000 hours which makes it a more cost-efficient solution compared to other devices with shorter life spans.

Working Principle

The UHN1A472MHD is an aluminum electrolytic capacitor, meaning it is constructed from an aluminum foil sheet which is anodized on both sides with a liquid electrolyte. The electrolyte acts as a dielectric within the capacitor. The device is also polarized, meaning that one of the leads carries a positive charge, and the other negative. This polarization prevents electrical breakdown, as electric energy will always flow through the component in the same direction.

The main principle behind aluminum electrolytic capacitors is that the capacitance is derived from an electrochemical reaction between the oxide layer on the aluminum plates and the electrolyte. When a voltage is applied across the device, a current will flow and an electric field will be generated between the two plates. This electric field causes a quantity of ions to move within the electrolyte, increasing the capacitance of the device and allowing the charge to build up over time.

Conclusion

The UHN1A472MHD is an aluminum electrolytic capacitor which is particularly suited for high-current applications due to its small size and relatively high capacitance values. The device is well-suited for LED drivers, AC to DC converters and other switch mode power supplies. The device works by an electrochemical reaction between the aluminum plates and the electrolyte, whereby an electric field is generated across the plates and allows the charge to increase. Overall, the UHN1A472MHD offers great performance for its intended applications and is a cost-efficient and reliable solution.

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